Has anyone ever used apple cider from last season that's turned (vinegar?) for pickling? It seems the same, but is it safe? It has been stored in 5 gallon plastic jugs. Thanks.
You could but the accuracy would be more questionable. Litmus is so easily affected by the environment that it isn't considered very stable. Plus the readings it gives are broad spectrum and open to different interpretations.Couldn't one use something like litmus papers?
https://www.amazon.com/Litmus-Strip...trips-Universal-Application-Packs/dp/B00S730YWG?ie=UTF8&ref_=zg_bs_3013605011_2